PSYC 2300 Chapter 10: Research Methods & Statistics
Document Summary
Correlated groups design: an experimental design in which the subjects in the experiment and control groups are related some way. Within subjects design: a type of correlated groups design in which the same subjects are used in each condition. Order effects: a problem for within subjects designs in which the order of the conditions has an effect on the dependent variable. Counterbalancing: a mechanism for controlling order effects either by including all orders of treatment presentation or by randomly determining the order for each subject. Latin square: a counterbalancing technique to control for order effects without using all possible orders. Carryover effects: a type of testing effect often present in within subjects designs in which subjects carry something with them from one condition to another. Matched subjects design: a type of correlated groups design in which subjects are matched between conditions on variables that the researcher believes are relevant to the study.
